The most important things are the hardest to say.
最重要的事情往往最难说出口。
Progress is impossible without change, and those who cannot change their minds cannot change anything.
生活中有黑暗也有光明,而你就是那光明中的光明。
小人也有坦荡之处,因为无所忌讳;君子亦有忧戚之处,因终生都忧国忧民。